Ultramassive Black Holes in the Most Massive Galaxies: M BH –σ versus M BH –R b

We investigate the nature of the relations between black hole (BH) mass ( M BH ) and the central velocity dispersion ( σ ) and, for core-Sérsic galaxies, the size of the depleted core ( R b ). Our sample of 144 galaxies with dynamically determined M BH encompasses 24 core-Sérsic galaxies, thought to...

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Bibliographic Details
Published in:The Astrophysical journal 2021-02, Vol.908 (2), p.134
Main Authors: Dullo, Bililign T., Gil de Paz, Armando, Knapen, Johan H.
Format: Article
Language:English
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Summary:We investigate the nature of the relations between black hole (BH) mass ( M BH ) and the central velocity dispersion ( σ ) and, for core-Sérsic galaxies, the size of the depleted core ( R b ). Our sample of 144 galaxies with dynamically determined M BH encompasses 24 core-Sérsic galaxies, thought to be products of gas-poor mergers, and reliably identified based on high-resolution Hubble Space Telescope imaging. For core-Sérsic galaxies, i.e., combining normal-core ( R b  
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/abceae